Airtac POC Round Thread Straight Connector POC4M5
The AirTAC Airtac POC Round Thread Straight Connector POC4M5 is a genuine male connector (compact) for push-in tube connection, rated 0 - 1.0 MPa (0 - 10 kgf/cm2) with a 1.5 MPa proof pressure.
- TypeMale connector (compact)
- SeriesPOC
- Working pressure0 - 1.0 MPa (0 - 10 kgf/cm2)
- Proof pressure1.5 MPa
- Temperature-20 to +70 °C
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac POC Round Thread Straight Connector POC4M5
The POC4M5 is AirTAC's POC compact male connector, sized for Dia 4 mm soft nylon or polyurethane tube and an M5x0.8 male thread. POC is the shorter-bodied alternative to the PC straight connector, so it sits closer to a port face when space above the fitting is tight. Push the tube in and the stainless chuck grips it; press the POM release ring and it slides free.
This is a resin one-touch part: working pressure 0-1.0 MPa, vacuum to -750 mmHg, proof pressure 1.5 MPa, and a temperature window of -20 to +70 C. The M5 thread is sealed by a captive sealing gasket rather than the pre-applied sealant used on the larger inch threads, so it can be backed off and re-seated without re-taping.
Airtac POC Round Thread Straight Connector POC4M5 Technical Specifications
| Model | Airtac POC Round Thread Straight Connector POC4M5 |
|---|---|
| Type | Male connector (compact) |
| Series | POC |
| Connection | Push-in one-touch |
| Working pressure | 0 - 1.0 MPa (0 - 10 kgf/cm2) |
|---|---|
| Negative pressure | -750 mmHg (10 Torr) |
| Proof pressure | 1.5 MPa |
| Temperature | -20 to +70 °C |
| Applicable tubing | Soft nylon or polyurethane tube |
| Thread standard | PT (Rc tapered) unless the code says otherwise |
POM release button and chuck, aluminium-alloy guide, stainless spring gasket, NBR O-ring; body brass or PBT depending on the part. AirTAC publishes flow as a characteristic curve rather than a single figure, so no L/min value is listed.
Model Code: Airtac POC Round Thread Straight Connector POC4M5
| POC | Male connector (compact). |
|---|---|
| 4 / 6 / 8 / 10 / 12 | Tube outside diameter in mm (3.2 mm exists on the mini series). |
| M5 / 01 / 02 / 03 / 04 | Thread: M5x0.8, 1/8", 1/4", 3/8", 1/2" (M3 on the mini series). |
| D | Black. Blank = grey. |
Fitting & Sealing Notes
- check Cut the tube square and clean before pushing it home, or the seal will leak.
- check Push until it stops, then pull back to check the chuck has gripped.
- check To release, press the collet ring fully in and pull the tube out.
- check Threaded parts arrive with sealant on the thread; M5 sizes use a sealing gasket.
- check Match the tube OD exactly - a 6 mm fitting will not hold 1/4" tube.
Where the Airtac POC Round Thread Straight Connector POC4M5 Is Used
Pick-and-place end of arm tooling
M5 ports are common on compact grippers and vacuum ejectors. The short POC4M5 body clears adjacent tooling plates where a full-length PC connector would foul.
Lab analyzer manifold connections
Benchtop analytical instruments often run 4 mm tube between solenoid manifolds. The M5 gasket seal makes re-configuration of the manifold layout clean and repeatable.
Small cylinder speed controls
Miniature ISO 6432 cylinders and flow-control valves on packaging machines frequently carry M5 ports; the POC4M5 feeds them with 4 mm tube straight from the valve island.
Is the Airtac POC Round Thread Straight Connector POC4M5 the Right Part?
Dia 4 is the smallest tube the POC M5 port accepts; the only step up on this thread is the POC6M5 for Dia 6 tube. If you need a stiffer line, POC4M5 with the 1/8" thread (POC401) also exists in Dia 4 and carries the sealant-sealed PT form instead of the M5 gasket. Tube OD must match exactly: a Dia 4 chuck will not seal 5/32" or 1/4" tube.
Choose POC over PC when the connector must clear a nearby wall, manifold rib or guard. For a female-threaded port, POCF is the mating shape rather than an adapter.
Quick checklist
- ✓ Tube outside diameter matches exactly
- ✓ Thread size and standard match the port
- ✓ Working pressure within 0 - 1.0 MPa (0 - 10 kgf/cm2)
- ✓ Temperature within -20 to +70 °C
Airtac POC Round Thread Straight Connector POC4M5 FAQ
Working pressure 0-1.0 MPa (0-10 kgf/cm2), negative pressure -750 mmHg (10 Torr), proof pressure 1.5 MPa, operating temperature -20 to +70 C. It connects Dia 4 mm soft nylon or polyurethane tube to an M5x0.8 male thread, sealed by a captive gasket. Grey POM release button, PBT threaded body, brass stud, PT-standard thread family.
No. The chuck is engineered for one tube OD only, and Dia 4 mm is not the same as 5/32 inch (3.97 mm). A metric one-touch fitting on an inch tube, or the reverse, will leak or blow off under pressure. Match the tube to Dia 4 mm exactly, or step to the correct size in the same family.
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